diff --git a/cad/.gitignore b/cad/.gitignore
new file mode 100644
index 0000000..0e52dc6
--- /dev/null
+++ b/cad/.gitignore
@@ -0,0 +1 @@
+milkymist-assemble-howto.pdf
diff --git a/cad/Makefile b/cad/Makefile
new file mode 100644
index 0000000..68686a7
--- /dev/null
+++ b/cad/Makefile
@@ -0,0 +1,21 @@
+all: milkymist-assemble-howto.pdf protocase_v7_laser.png
+
+#
+# Install the Yanone Kaffeesatz font from http://www.yanone.de/
+#
+milkymist-assemble-howto.pdf: milkymist-assemble-howto.svg
+	inkscape -A $@ $<
+
+TMP1 := $(shell mktemp)
+TMP2 := $(shell mktemp)
+
+# process with xsltproc to make the lines thicker and more visible in the PNG
+protocase_v7_laser.png: protocase_v7_laser.dxf
+	dia -e $(TMP1) -t dia $<
+	zcat $(TMP1) | xsltproc --stringparam line_width 0.5 dia_set_line_width.xsl - | gzip > $(TMP2)
+	dia -e $@ -t png -s x500 $(TMP2)
+	rm -f $(TMP1) $(TMP2)
+
+clean:
+	rm -f milkymist-assemble-howto.pdf
+	rm -f protocase_v7_laser.png
diff --git a/cad/dia_set_line_width.xsl b/cad/dia_set_line_width.xsl
new file mode 100644
index 0000000..779b9c5
--- /dev/null
+++ b/cad/dia_set_line_width.xsl
@@ -0,0 +1,41 @@
+<xsl:stylesheet version="1.0"
+        xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+        xmlns:dia="http://www.lysator.liu.se/~alla/dia/" >
+
+        <xsl:output method="xml" encoding="UTF-8" />
+
+        <xsl:param name="line_width" />
+
+        <xsl:template match="@*|node()">
+                <xsl:copy>
+                        <xsl:apply-templates select="@*|node()"/>
+                </xsl:copy>
+        </xsl:template>
+
+        <!--xsl:template match="dia:real" >
+                <xsl:element name="dia:real">
+                        <xsl:attribute name="val">
+                                <xsl:value-of select="$line_width" />
+                        </xsl:attribute>
+                </xsl:element >
+        </xsl:template-->
+
+        <!-- xsl:template match="dia:attribute[@name='line_width']/dia:real" >
+                <dia:attribute name="line_width">
+                        <xsl:element name="dia:real">
+                                <xsl:attribute name="val">
+                                        <xsl:value-of select="$line_width" />
+                                </xsl:attribute>
+                        </xsl:element >
+                </dia:attribute>
+        </xsl:template -->
+
+        <xsl:template match="dia:attribute[@name='line_width']/dia:real" >
+                <xsl:element name="dia:real">
+                        <xsl:attribute name="val">
+                                <xsl:value-of select="$line_width" />
+                        </xsl:attribute>
+                </xsl:element >
+        </xsl:template>
+
+</xsl:stylesheet>
diff --git a/cad/milkymist-assemble-howto.svg b/cad/milkymist-assemble-howto.svg
index 98d823b..80fcbb6 100644
--- a/cad/milkymist-assemble-howto.svg
+++ b/cad/milkymist-assemble-howto.svg
@@ -5253,7 +5253,7 @@
        id="image10882"
        height="243.06699"
        width="303.12479"
-       xlink:href="file:///home/labor/Desktop/Kunden/Milkymist-Howto/Mm1_rc1_parts_on_pcb_farb.png"
+       xlink:href="Mm1_rc1_parts_on_pcb_farb.png"
        transform="matrix(0.54058897,0.84128685,-0.95495475,0.29675145,0,0)" />
     <g
        style="display:inline"
diff --git a/jtag-serial/.gitignore b/jtag-serial/.gitignore
index e4d5668..f2f064e 100644
--- a/jtag-serial/.gitignore
+++ b/jtag-serial/.gitignore
@@ -3,3 +3,4 @@ usb_jtagFront.pos
 usb_jtagBack.pos
 $savepcb.000
 $savepcb.brd
+.dsv